Fornebu served as the main airport for Oslo and the country since before World War II and until the evening of October 7, 1998, when it was closed down.

Sognsvann is a 3.3 km circumference lake just north of Oslo, Norway. 

The meaning of the name Langøyene is ‘the [two] long islands’. Nordre Langøy and Søndre Langøy.